Pressure regulator



FIG. 1 is a front, bottom left perspective view of a pressure regulator according to the invention;

FIG. 2 is a front elevational view according to the invention; and,

FIG. 3 is a left elevational view according to the invention; and,

FIG. 4 is a top plan view according to the invention; and,

FIG. 5 is a bottom plan view according to the invention; and,

FIG. 6 is a back, top left perspective view according to the invention.

The broken lines in FIG. 4 and FIG. 5 are included for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a pressure regulator, as shown and described. 